Serving spoon



FIG. 1 is a top, left side and front perspective view of a serving spoon showing the new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof, the right side elevation being identical thereto;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a serving spoon, as shown and described. 